Export the names of extenerals that are declared as weak (#268)
This allows the js compiler to avoid warning/errors when such symbols are missing.
diff --git a/lib/Target/JSBackend/JSBackend.cpp b/lib/Target/JSBackend/JSBackend.cpp
index 78091ec..c41757c 100644
--- a/lib/Target/JSBackend/JSBackend.cpp
+++ b/lib/Target/JSBackend/JSBackend.cpp
@@ -254,6 +254,7 @@
NameSet Externals; // vars
NameSet ExternalFuncs; // funcs
NameSet Declares; // funcs
+ NameSet WeakDeclares; // funcs
StringMap Redirects; // library function redirects actually used, needed for wrapper funcs in tables
std::vector<std::string> Relocations;
NameIntMap NamedGlobals; // globals that we export as metadata to JS, so it can access them by name
@@ -3942,6 +3943,10 @@
continue;
}
+ if (I->hasExternalWeakLinkage()) {
+ WeakDeclares.insert(fullName);
+ }
+
if (first) {
first = false;
} else {
@@ -3961,6 +3966,19 @@
}
Out << "],";
+ Out << "\"weakDeclares\": [";
+ first = true;
+ for (NameSet::const_iterator I = WeakDeclares.begin(), E = WeakDeclares.end();
+ I != E; ++I) {
+ if (first) {
+ first = false;
+ } else {
+ Out << ", ";
+ }
+ Out << "\"" << *I << "\"";
+ }
+ Out << "],";
+
Out << "\"redirects\": {";
first = true;
for (StringMap::const_iterator I = Redirects.begin(), E = Redirects.end();
